Heating, drying and ventilating system



Feb. 16, 1932. J. c. STILLMAN 1,8

HEATING, DRYING, AND VENTILATING SYSTEM Filed July 15, 1927 3 Sheets-Sheet 1 WM/w ATTORNEYS.

Feb. 16, 1932. J. c. STILLMAN 1,345,942

HEATING, DRYING, AND VENTILATING SYSTEM Filed July 15, 192 5 Sheets-Sheet 2 (fa/727 a, Sf #0700 INVENTOR.

A TTORNEYS.

Feb. 16, 1932- J c STILLMAN 1,845,942

HEATING, DRYING, AND VENTILATING SYSTEM Filed July 13, 192' 5 Sheets-Sheet 3 bi/2 6, (57/707700 INVENTOR.

A TTORNEYS. K

Patented Feb. 16, 1932 UNITED STATES PATENT OFFICE JOHN C. STILLMAN, OF APPLETON, WISCONSIN Application filed July 18,

This invention relates to system for controlling the temperature, ventilation, and humidity, in a factory or the like where it is essential that definite temperature and humidity conditions be maintained in different rooms or different portions of the same room both to meet manufacturing or production requirements, and to afford comfort and sanitary air conditions for those employed in the in factory.

An object of the invention is the development of a system that will keep the air of the various rooms in the proper condition and at the proper temperature, while at the same time assuring proper ventilation thereof.

Another object of this invention is the construction of a system capable of utilizing exhaust steam for the purpose of heating buildm s.

with these and other objects in view, my invention will be better understood from a description of the same when taken in connection with the accompanying drawings, where Figure 1 is a diagrammatic view of the complete system;

Flgure 2 is a plan view of a portion of the system;

Figure 3 is a detail elevation of the hot air conduit and associated devices.

Again re for-ring to the drawings illustrating one of the many constructions of my invention, the letter A designates in a dia rammatic manner a factory or other type of uilding sub-divided into the various floors C and having its ground or basement floor partitioned to provide a fan room 1 and an auxiliary room 2. Circulation of air through the rooms is controlled by the damper 3 and the fan room 1 can be placed in communication with the exterior atmosphere by a door 4. It will be appreciated that the humidity of the air in the rooms can be regulated to the best advantage by opening the door 4 to admit fresh air. Thus I am able to accurately con trol the condition of the air in the fan room so as to obtain the best advantages possible. To provide for the circulation of air from one floor to the other, covered openings B are provided which may be opened and closed ac- 1927. Serial No. 205,520.

cording to the desire of the occu ant of the building. Any suitable construction of fluid heating apparatus may be used with my system and, therefore, I have not illustrated an of the well known types of apparatus for such purpose, although I have shown the usual riser 5 and return 6 of a power plant. The riser 5 communicates with the steam line 7 which may be arranged in communication with the exhaust from a power plant. Arranged within the main chamber are a plurality of heat coils, shown in this particular instance as two in number and designated by the numerals 8 and 9, the former communicating directly with the feed line 7 by the pipe 10, while the latter communicates by the bypipe 11 with the dischar e pi e 12 of the system. Of course, it is to 'un erstood that t e coils 8 and 9 are arranged in communication with each other. A vacuum ump 13 is arranged to draw water of con ensation and air from the coil 8 by way of a pipe 8 and force the same through coil 9 on its wa through pipe 11 to pipe 12 and then throng pipe 24 to the tank 23. At this point the air separates and passes up through the pipe 25 to the exhaust head 26. Thus it will be appreciated that the coil 9 is capable of initially heating the incoming air whereas coil 8 is utilized to increase the temperature of the inas coming air.

Surrounding the coils 8 and 9 are the hoods 14 and 15 discharging into the blower 16 that is driven by the motor 17 and in turn discharges into the hot air conduit 18. This hot air conduit may be provided with any required number of discharge ports 19 for discharging hot air into the various rooms of the factory.

From the foregoing description of the in-. 90 vention it will be apparent that in carrying out the same I am enabled to properly regulate the humidity in the air in the rooms of the factory and the circulation of the air therethrough. This assures the proper conditiono5 ing of the air so that the same may be properly heated by the various heating devices within the main chamber and more particularly by the heat coils 8 and 9. This heated air is forced by the fan up through the hot air conduit for pro r distribution. Under certain factory con itions, it is not onl nec essary to prevent commumcation with t e exterior of the factory but it is also necessary 5 to provide the pro er ventilation and this is accomplished by t e novel arrangements of the conduit 20 that performs the dual function of roperly ventilatin the various rooms an returns to the con itioning room, air at a favorable temperature.

Of course, it is to be understood that the various apparatuses and devices may be constructed and assembled in other relations than illustrated and may be designed in various other manners and, therefore, I do not desire to be limited in any manner except as set forth in the appended claim.

I claim In a system for controlling the tem erature, ventilation, and humidity in a bui ding structure having upper and lower stories, partitions dividing the lower story into a fan room and an auxiliary room, a heating unit in the fan room of the lower story, a feed line communicating with said unit, an outlet line leading from said unit, a hot air conduit for conducting hot air from the unit to the upper story of the structure leading) through the auxiliary room and having ranches pr0- vided with outlets in the upper story, the floors between the stories being provided with covered openings and permitting communication between the auxiliary room and the adjacent upper story when desired, means whereby atmospheric air may be admitted into the fan room of the lower story adjacent to said heating unit, and a return air pipe leading through the stories terminatingat its upper end in close proximity to the ceiling of the upper story and at its lower end in close proximity to the heating unit in said fan room.

In testimony whereof I affix my signature.

JOHN C. STILLMAN. 

